Damage resistant glass (such as Corning Gorilla Glass or Asahi Dragontrail Glass) is thin, lightweight, and can withstand high levels of force.

4.screen size

5"

4"

The bigger the screen size is, the better the user experience.

Best

Huawei Mate 20 X

7.2"

5.every pixel has three subpixels

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

The device has a display with three full subpixels per pixel, resulting in a sharp and crisp picture. Pixels in some displays (like AMOLED) share one subpixel to preserve space. This can result in a less crisp, slightly blurred image.

6.Has an AMOLED display

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

AMOLED displays, also known as active matrix OLED displays, offer higher refresh rates and consume less power than other types of displays.

Performance

1.Has integrated graphics

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

With integrated graphics you don’t need to buy a separate graphics card.

2.Has out-of-order execution

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

Out-of-order execution is used in CPUs to make use of instruction cycles that would normally be wasted due to delays.

3.Has dynamic frequency scaling

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

Dynamic frequency scaling is a technology that allows the processor to conserve power and reduce noise when it is under a light load.

4.RAM

1GB

1GB

Best

Vivo NEX 2

10GB

5.Has NX bit

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

NX bit helps protect the computer from malicious attacks.

6.Has TrustZone

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

A technology integrated into the processor to secure the device for use with features such as mobile payments and streaming video using digital rights management (DRM).

Cameras

1.megapixels

8MP

5MP

Best

Huawei Mate 20 X

40 & 20 & 8MP

2.video recording (main camera)

1080 x 30fps

720 x 30fps

The maximum resolution available for videos shot with the main camera. Although it may be possible to choose among other frame rates, those recordings usually have lower resolutions.

Best

Crosscall Trekker-X4

1080 x 120fps

3.front camera megapixels

5MP

0.3MP

Best

Wiko View2 Pro

16 & 16MP

4.widest aperture

f/2.2

f/2.6

With a wider aperture the sensor can capture more light, helping to avoid blur by enabling a faster shutter speed. It also provides a shallow depth of field, allowing you to blur the background to focus attention on the subject.

Best

Vivo NEX 2

1.3 & 1.8 & 1.8f

5.has a front camera

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

A front camera, also called secondary camera, can be used for video chats/selfies.

6.has a flash

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

A flash is good for low-light environments, and can sometimes be used as flashlight.

Audio

1.has a socket for a 3.5 mm audio jack

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

With a standard mini jack socket, you can use the device with most headphones.

2.number of microphones

1

2

More microphones result in better sound quality and enable the device to filter out background noise.

Best

Motorola Moto Z3

4

3.has a radio

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

It works as an FM radio with included headsets

4.has dedicated media keys

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

The music player can be blindly used.

For example

ZTE Nubia X

Battery

1.battery power

3000mAh

1500mAh

Best

Energizer Power Max P16K Pro

16000mAh

2.has a removable battery

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

The battery is removable and can be replaced by the user if broken.

3.has a battery level indicator

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

An indicator shows you when the device has low battery.

4.has a rechargeable battery

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

The battery can be recharged and used over again.

Features

1.Is a multi-user system

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

2.Has offline voice recognition

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

Offline voice recognition enables you to perform voice actions, like dictating texts or using various voice commands, without an internet connection.

3.Supports Java

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

4.Allows app installs on the device's external storage

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

5.Is free and open source

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

Anyone is free to use, copy, study, and change the software in any way, and the source code is openly shared so that people are encouraged to voluntarily improve the design of the software.

6.Has sharing intents

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

If an app has sharing capabilities and the developers have indicated it, the app will automatically appear in your list of sharing options. Some OS’s limit direct sharing options to a select few apps, which means you have to open apps separately in order to upload the files you want to share.

Miscellaneous

1.Has a built-in FM transmitter

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

Built-in FM transmitter allows you to wirelessly stream music from your device to any radio, e.g. in your car, at a predefined frequency.

For example

T-Mobile Doubleshot

2.has a 24p cinema mode

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

24p is a video format (24 frames per second) traditionally used in cinema. Nowadays, it is used to create film-like motion characteristics.

For example

Coolpad Quattro 4G

3.supports AVCHD format

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

AVCHD (Advanced Video Coding High Definition) is a file-based format for the digital recording and playback of high-definition video. It's a standard popular among professional cameras and camcorders.

For example

Coolpad Quattro 4G

4.has or is a prime lens

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

A prime lens has a fixed focal length. In general, these are sharper, with a wider aperture.

For example

Samsung Ativ SE

5.Is a system camera

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

A system camera has lots of changeable parts such as lenses, flashes and other accessories. They offer greater flexibility than compact cameras.

For example

Coolpad Quattro 4G

6.has a dedicated Facebook key

Obi Worldphone SJ1.5

Samsung Galaxy S3 Mini

Whenever the Facebook key lights up contents can be quickly shared by pressing it.